The process of gene expression includes two steps: ____________________ and ____________________
ANSWER: b
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Recall that several vascular bundles (containing phloem and xylem) are located around the circumference of a vascular plant stem. In contrast, a root contains one vascular bundle running down its center
What might account for this different arrangement of vascular bundles in stems and roots? A. Stems need to counteract the force of gravity (and support leaves), but roots do not. B. Roots need to quickly transport nutrients to the rest of the plant, but stems do not. C. Roots require less nutrients compared to stems.
Stilling and Drake have conducted experiments about what, if any, effects that elevated atmospheric carbon dioxide might have on insect herbivory of plants. What did they find?
A. elevated plant growth but no change in insect herbivory B. no change in plant growth but elevated insect herbivory C. elevated plant growth but reduced insect herbivory D. elevated release of carbon dioxide by plants subject to insect herbivory E. no change in both plant growth and insect herbivory
If the activation energy for a chemical reaction is very high, the ____
a. reaction will have an overall net gain of energy b. reaction will have an overall net loss of energy c. reaction will progress slowly d. reaction will progress quickly e. reactants have a lower energy than the products
What is the name of the meristematic tissue that gives rise to future vascular tissue?
A. Procambium B. Dermal tissue C. Ground meristem D. Cork cambium E. Protoderm